A student in Australia says math teacher Rob Tarrou is "smart, humble and helpful." • A student in Sweden tells him "you help more people than you ever imagine." • A student in India writes: "u r an absolute genius!!! Hats-off!"
Tarrou has been at St. Petersburg High School for 17 years, and says he loves teaching students algebra, trigonometry and statistics, even more than he loves algebra, trigonometry and statistics.
Last year, he landed on an additional way to teach — through YouTube. He has posted more than 300 videos on such topics as factoring, right angle trigonometry, standard deviation and — this one had more than 33,000 views — "z-score Calculations & Percentiles in a Normal Distribution."
Tarrou, 41, began posting his self-made videos in the fall of 2011, partly to help a student who couldn't attend class.
Now, people around the world have watched "Tarrou's Chalk Talk" videos more than half a million times. More than 3,000 people from more than 100 countries have subscribed to his online channel...
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